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S.A.R.T.
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Society for Assisted Reproductive Technologies affiliated with the American Society for Reproductive Medicine comprised of representatives from assisted reproduction technology programs that have demonstrated their ability to perform in vitro fertilization.
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Selective reduction
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An intentional reduction in the number of fetuses in women with multifetal gestation.
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Semen
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What is ejaculated
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Semen analysis
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The study of fresh ejaculate under the microscope to count the number of sperm per milliliter or cubic centimeter, to check the shape and size of the sperm (morphology), and to note their ability to move (motility).
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Serophene
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Drug company name for Clomiphene Citrate
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Short protocol
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Use of an agonist starting with or after onset of menses of the cycle being entered to augment stimulation. see Flare
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Spare embryos
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Embryos remaining after embryo replacement in an IVF cycle
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Sperm
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The male gamete or sex cell that contains the genetic information to be transmitted by the male, also known as spermatozoon (plural spermatozoa).
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Sperm density
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The number of sperm present per millileter of semen.
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Sperm morphology
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Shape or form of the sperm cells.
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Sperm motility
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Sperm cells demonstrating any type of movement.
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Sperm viability
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Whether or not the sperm are alive.
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Sperm washing
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A technique that separates the sperm from the seminal fluid in preparation for use in assisted reproduction.
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Spermicides
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Chemicals which kill sperm
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Spontaneous miscarriage
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A pregnancy ending in miscarriage with or without an operative procedure.
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Spontaneous reduction
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An ultrasound-confirmed documentation of a reduction in the number of fetuses observed, be it a "vanishing twin" or a spontaneous loss of a single fetus.
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Stimulation Drugs
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Drugs used to stimulate a woman's ovaries to produce more eggs than usual in a monthly cycle; also known as superovulatory drugs.
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Straws
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Small plastic straws in which sperm or embryos are frozen
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Strict morphology criteria
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In the semen analysis, a strict criteria for the analysis includes the measurement of acrosome size, head width, tail length, etc., for determining the percent normal forms of sperm.
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Subcutaneous injection
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Injection under the skin
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Superovulation / Stimulation
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The stimulation of a woman’s ovaries with drugs to produce more eggs than usual in a monthly cycle.
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Suprefact
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Drug company name for Buserelin
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Synchronising cycles
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Manipulating the menstrual cycles of a donor and recipient so that they would ovulate at the same time or have hormone changes at the same time
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